Oregon State Senate District 15

State Legislative District Profile (Upper Chamber)

Overview

District ID
or-sd-015
State
Oregon
Chamber
Upper chamber (state senate)
District Code
015
Land Area
104.5 sq mi
Water Area
0.28 sq mi

Boundary

Boundary of Oregon State Senate District 15

Boundary as GeoJSON

Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.

Counties

CountyOverlapShare of district landShare of county land
Washington County104.52 sq mi100.0%14.4%

Showing all 1 county

Places

PlaceOverlapShare of district landShare of place land
Hillsboro city20.56 sq mi19.7%77.7%
Forest Grove city5.83 sq mi5.6%97.3%
Cornelius city2.34 sq mi2.2%100.0%
Rockcreek CDP1.36 sq mi1.3%69.0%
Dilley CDP0.43 sq mi0.4%57.2%

Showing all 5 places

Overlapping Congressional Districts

Congressional districtPopulation in bothShare of this district's populationShare of the congressional district's populationShare of this district's land
OR District 1140,598100.0%19.9%100.0%

Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).

Voters

Registered Voters
110,004
Active Voters
88,047 (80.0%)

Party Registration

PartyVotersShare
Democratic33,34030.3%
Republican20,20318.4%
Unaffiliated49,38544.9%
Other parties7,0766.4%
No party recorded00.0%

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2023–202462,806 (57.1%)0 (0.0%)0 (0.0%)
2021–202251,402 (46.7%)0 (0.0%)0 (0.0%)
2019–202062,282 (56.6%)0 (0.0%)0 (0.0%)
2017–201846,138 (41.9%)0 (0.0%)0 (0.0%)
2015–201648,338 (43.9%)0 (0.0%)0 (0.0%)
2013–201434,081 (31.0%)0 (0.0%)0 (0.0%)
2011–201237,318 (33.9%)0 (0.0%)0 (0.0%)

Turnout counts today's registered voters with a counted ballot in the cycle's elections (the odd and even year), as a share of today's registered voters. Voters who have since left the rolls are not counted.

Browse the voter list for this district (premium access; sign-in required)

Source: Civitech voter file snapshot as of 10/02/2025. These are registered voters, separate from the Census population figures. Counts under 10 are suppressed and shown as "<10".

Demographics

Total Population
141,889 (± 2,003)
Median Age
35.3
Median Household Income
$100,967 (± $4,008)
High School Graduate or Higher (age 25+)
90.1%
Bachelor's Degree or Higher (age 25+)
37.7%

Population by Age

GroupPeopleShare
Under 1829,86721.0%
18 to 6493,23165.7%
65 and over18,79113.2%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)39,01127.5%
White, not Hispanic77,84654.9%
Black, not Hispanic3,2872.3%
Asian, not Hispanic11,8008.3%
American Indian / Alaska Native, not Hispanic3710.3%
Native Hawaiian / Pacific Islander, not Hispanic1,0470.7%
Some other race, not Hispanic7260.5%
Two or more races, not Hispanic7,8015.5%

Source: U.S. Census Bureau, American Community Survey 2020-2024 ACS 5-year estimates (tables B01001, B01002, B01003, B03002, B15003, B19013) for this state legislative district. Estimates are survey-based; ± figures are 90% margins of error.

Citizen Voting Age Population

Total Citizen Population
127,452
Citizen Voting Age Population (CVAP)
98,381

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic95,71575.1%
Hispanic31,73424.9%
White78,30061.4%
Black2,5072.0%
Asian7,2015.6%
American Indian / Alaska Native3740.3%
Native Hawaiian / Pacific Islander1,1470.9%
Two or More Races9990.8%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic79,45680.8%
Hispanic18,92419.2%
White66,83067.9%
Black2,2902.3%
Asian7,3147.4%
American Indian / Alaska Native1,2901.3%
Native Hawaiian / Pacific Islander1,0821.1%
Two or More Races6810.7%

Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).